Related Experiment Videos
Expanded polytetrafluoroethylene surgical membrane for pericardial closure. An experimental study
The Journal of Thoracic and Cardiovascular Surgery
|March 1, 1985
Summary
A new polytetrafluoroethylene (PTFE) surgical membrane shows promise as a pericardial substitute. The 0.1 mm thick PTFE membrane effectively prevented adhesions in dogs, suggesting potential for reducing adhesions and aiding reoperation.
Area of Science:
- Biomaterials Science
- Cardiovascular Surgery
- Veterinary Medicine
Background:
- Pericardial adhesions can complicate cardiac surgery and reoperation.
- Effective pericardial substitutes are needed to prevent adhesions.
Purpose of the Study:
- To evaluate a new polytetrafluoroethylene (PTFE) surgical membrane as a pericardial substitute in a canine model.
- To assess the incidence of pericardial adhesions and membrane integrity post-implantation.
Main Methods:
- 24 dogs underwent pericardial closure using PTFE membranes (0.1 mm and 0.2 mm thick).
- Dogs were divided into simple closure and post-cardiac procedure groups.
- Postmortem examinations assessed membrane characteristics and pericardial adhesions.
Main Results:
- The 0.1 mm thick PTFE membranes showed no structural changes or adhesions.
- Seven of eight 0.2 mm thick membranes resulted in filmy pericardial adhesions.
- Implanted membranes were acellular and maintained initial characteristics; epicardium and coronary arteries remained normal.
Conclusions:
- The 0.1 mm thick PTFE membrane is a promising candidate for reducing or eliminating pericardial adhesions.
- Further clinical testing is recommended to evaluate its efficacy in preventing adhesions and facilitating cardiac reoperation.